January weather forecast
Shirleysburg, PA

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Weather in January

January, like December, in Shirleysburg, Pennsylvania, is an icy winter month, with an average temperature varying between 32.9°F (0.5°C) and 20.1°F (-6.6°C).

Temperature

Shirleysburg's coldest month, January, registers temperatures that range from a high of 32.9°F (0.5°C) to a low of 20.1°F (-6.6°C).

Humidity

In January, the average relative humidity is 79%.

Rainfall

In January, in Shirleysburg, the rain falls for 9.8 days. Throughout January, 2.09" (53mm) of precipitation is accumulated. Throughout the year, in Shirleysburg, there are 164.3 rainfall days, and 28.19" (716mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall in Shirleysburg is January, when snow falls for 12.2 days and typically aggregates up to 5.24" (133mm) of snow.

Daylight

In January, the average length of the day is 9h and 41min.
On the first day of the month, sunrise is at 7:34 am and sunset at 4:55 pm. On the last day of January, sunrise is at 7:21 am and sunset at 5:28 pm EST.

Sunshine

The month with the least sunshine is January, with an average of 4.2h of sunshine.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What time of the year is the coldest in Shirleysburg?

Shirleysburg's coldest month, January, registers temperatures that range from a high of 32.9°F (0.5°C) to a low of 20.1°F (-6.6°C).

How cold is it in Shirleysburg in January?

In Shirleysburg, in January, the average high-temperature is 32.9°F (0.5°C), and the average low-temperature is 20.1°F (-6.6°C).

What is the average humidity in January in Shirleysburg?

In January, the average relative humidity is 79%.

How many days does it rain in January in Shirleysburg?

In Shirleysburg, Pennsylvania, in January, it is raining for 9.8 days, with typically 2.09" (53mm) of accumulated precipitation.

When does it snow the most in Shirleysburg?

January is the month with the most snowfall in Shirleysburg. Snow falls for 12.2 days and accumulates 5.24" (133mm) of snow.

How much does it snow in Shirleysburg in January?

In Shirleysburg, Pennsylvania, during January, snow falls for 12.2 days and regularly aggregates up to 5.24" (133mm) of snow.

What is the average length of the day in January in Shirleysburg?

In Shirleysburg, Pennsylvania, the average day length in January is 9h and 41min.

When is the sunrise / sunset in January in Shirleysburg?

In January, on the first day of the month, sunrise is at 7:34 am and sunset at 4:55 pm. On the last day of the month, in Shirleysburg, sunrise is at 7:21 am and sunset at 5:28 pm EST.

What is the month with the least sunshine in Shirleysburg?

January has the least sunshine of the year in Shirleysburg, Pennsylvania, with an average of 4.2h of sunshine.

How long on average sun shines in January in Shirleysburg?

In January, the average sunshine duration is 4.2h.

When is the lowest UV index in Shirleysburg?

The months with the lowest UV index in Shirleysburg, Pennsylvania, are January through March, October through December, with an average maximum UV index of 2.

What is the UV index intensity in January in Shirleysburg?

In Shirleysburg, Pennsylvania, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Shirleysburg, PA

Average temperature in January - Shirleysburg, PA
  • Average high temperature in January: 32.9°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in January: 20.1°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in January
Shirleysburg, PA

Average pressure in January - Shirleysburg, PA
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in January
Shirleysburg, PA

Average wind speed in January - Shirleysburg, PA
  • Average wind speed in January: 7.8mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in January
Shirleysburg, PA

Average humidity in January - Shirleysburg, PA
  • Average humidity in January: 79%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).

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Average rainfall in January
Shirleysburg, PA

Average rainfall in January - Shirleysburg, PA
  • Average rainfall in January: 2.09"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in January
Shirleysburg, PA

Average rainfall days in January - Shirleysburg, PA
  • Average rainfall days in January: 9.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).

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Average snowfall in January
Shirleysburg, PA

Average snowfall in January - Shirleysburg, PA
  • Average snowfall in January: 5.24"

The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Shirleysburg, PA

Average snowfall days in January - Shirleysburg, PA
  • Average snowfall days in January: 12.2 days

The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Shirleysburg, PA

Average daylight in January / Average sunshine in January - Shirleysburg, PA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in January
Shirleysburg, PA

Average sunshine days in January - Shirleysburg, PA
  • Average sunshine days in January: 12.8 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in January
Shirleysburg, PA

Average UV index in January - Shirleysburg, PA
  • Average UV index in January: 2

The months with the highest UV index are May and June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in January
Shirleysburg, PA

Average cloud cover in January - Shirleysburg, PA
  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in January
Shirleysburg, PA

Average visibility in January - Shirleysburg, PA
  • Average visibility in January: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

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Shirleysburg, Pennsylvania, USA

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